<template>
  <div class="panel-tab__content">
    <div class="panel-tab__content--title">
      <span
        ><i class="el-icon-menu" style="margin-right: 8px; color: #555555"></i
        >消息列表</span
      >
      <el-button
        size="mini"
        type="primary"
        icon="el-icon-plus"
        @click="openModel('message')"
        >创建新消息</el-button
      >
    </div>
    <el-table :data="messageList" size="mini" border>
      <el-table-column type="index" label="序号" width="60px" />
      <el-table-column
        label="消息ID"
        prop="id"
        max-width="300px"
        show-overflow-tooltip
      />
      <el-table-column
        label="消息名称"
        prop="name"
        max-width="300px"
        show-overflow-tooltip
      />
    </el-table>
    <div
      class="panel-tab__content--title"
      style="padding-top: 8px; margin-top: 8px; border-top: 1px solid #eeeeee"
    >
      <span
        ><i class="el-icon-menu" style="margin-right: 8px; color: #555555"></i
        >信号列表</span
      >
      <el-button
        size="mini"
        type="primary"
        icon="el-icon-plus"
        @click="openModel('signal')"
        >创建新信号</el-button
      >
    </div>
    <el-table :data="signalList" size="mini" border>
      <el-table-column type="index" label="序号" width="60px" />
      <el-table-column
        label="信号ID"
        prop="id"
        max-width="300px"
        show-overflow-tooltip
      />
      <el-table-column
        label="信号名称"
        prop="name"
        max-width="300px"
        show-overflow-tooltip
      />
    </el-table>

    <el-dialog
      :visible.sync="modelVisible"
      :title="modelConfig.title"
      :close-on-click-modal="false"
      width="400px"
      append-to-body
      destroy-on-close
    >
      <el-form
        :model="modelObjectForm"
        size="mini"
        label-width="90px"
        @submit.native.prevent
      >
        <el-form-item :label="modelConfig.idLabel">
          <el-input v-model="modelObjectForm.id" clearable />
        </el-form-item>
        <el-form-item :label="modelConfig.nameLabel">
          <el-input v-model="modelObjectForm.name" clearable />
        </el-form-item>
      </el-form>
      <template slot="footer">
        <el-button size="mini" @click="modelVisible = false">取 消</el-button>
        <el-button size="mini" type="primary" @click="addNewObject"
          >保 存</el-button
        >
      </template>
    </el-dialog>
  </div>
</template>
<script>
export default {
  name: "SignalAndMassage",
  data() {
    return {
      signalList: [],
      messageList: [],
      modelVisible: false,
      modelType: "",
      modelObjectForm: {},
    };
  },
  computed: {
    modelConfig() {
      if (this.modelType === "message") {
        return { title: "创建消息", idLabel: "消息ID", nameLabel: "消息名称" };
      } else {
        return { title: "创建信号", idLabel: "信号ID", nameLabel: "信号名称" };
      }
    },
  },
  mounted() {
    this.initDataList();
  },
  methods: {
    initDataList() {
      this.rootElements =
        window.bpmnInstances.modeler.getDefinitions().rootElements;
      this.messageIdMap = {};
      this.signalIdMap = {};
      this.messageList = [];
      this.signalList = [];
      this.rootElements.forEach((el) => {
        if (el.$type === "bpmn:Message") {
          this.messageIdMap[el.id] = true;
          this.messageList.push({ ...el });
        }
        if (el.$type === "bpmn:Signal") {
          this.signalIdMap[el.id] = true;
          this.signalList.push({ ...el });
        }
      });
    },
    openModel(type) {
      this.modelType = type;
      this.modelObjectForm = {};
      this.modelVisible = true;
    },
    addNewObject() {
      if (this.modelType === "message") {
        if (this.messageIdMap[this.modelObjectForm.id]) {
          return this.$message.error("该消息已存在，请修改id后重新保存");
        }
        const messageRef = window.bpmnInstances.moddle.create(
          "bpmn:Message",
          this.modelObjectForm
        );
        this.rootElements.push(messageRef);
      } else {
        if (this.signalIdMap[this.modelObjectForm.id]) {
          return this.$message.error("该信号已存在，请修改id后重新保存");
        }
        const signalRef = window.bpmnInstances.moddle.create(
          "bpmn:Signal",
          this.modelObjectForm
        );
        this.rootElements.push(signalRef);
      }
      this.modelVisible = false;
      this.initDataList();
    },
  },
};
</script>
